[sancarn]

Consolidates test execution under Tools/Testing/run.py and moves test-only harnesses and fixtures into root tests/. An explicit manifest supports aggregate runs, individual suites and named cases, with shared Office isolation, dialog/time limits, structured results and exact settings restoration. Callback and Regex cases are independently selectable; the newly merged Enumerator harness is included.

Breaking changes:

• Replace commands in the removed Tools/*-tests folders with the corresponding shared runner suite IDs documented in tests/README.md.
• Replace stdLambda.protRunVMTests with python Tools/Testing/run.py --suite stdLambda.vm --test Instructions; private VM tests are injected into a disposable class copy.

Validation:

• Default aggregate: 28 cases passed, with 653 reported VBA assertions.
• 18 native Window ABI cases and three Office failure-handling checks passed.
• Selected Lambda VM, Timer and Word Regex checks passed.
• After rebasing onto current master, the migrated Enumerator harness passed 93 existing assertions and streaming/cursor probes.
• Generated docs compared against the PR base: only the intended Lambda test member and associated test TODOs were removed. Changed text files were checked for CRLF; diff whitespace checks pass.

Not every opt-in suite was executed. Unsupported Access automation, the workbook-bound Clipboard suite and the historical Regex comparison are explicit skips; native Regex ABI tests require llvm-mingw clang. Legacy full-test branches require --full.